* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { width: 100%; height: 100%; overflow: hidden; background: #000; }
body { touch-action: none; -webkit-touch-callout: none; -webkit-user-select: none; user-select: none;
  font-family: 'Songti SC','STSong','SimSun','Noto Serif CJK SC', serif; }
canvas { display: block; }

/* Loading Screen */
#loading { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: #000;
  z-index: 100; transition: opacity 1.5s; }
#loading-title, #loading-sub, #loading-tag { display: none; }

/* Title */
#title { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 2.5em; letter-spacing: 0.2em;
  text-shadow: 0 0 30px rgba(255,255,255,0.3);
  opacity: 0; pointer-events: none; z-index: 10; }

#subtitle { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center; padding-top: 80px;
  color: rgba(255,255,255,0.4); font-size: 0.9em; font-family: sans-serif;
  font-style: italic; opacity: 0; pointer-events: none; z-index: 10; }

/* Character Name */
#char-name { position: fixed; top: 12px; left: 16px; color: rgba(255,255,255,0.6);
  font-size: 0.85em; font-family: sans-serif; pointer-events: none; z-index: 5;
  opacity: 0; transition: opacity 0.5s; }

/* Text Overlay */
#text { position: fixed; bottom: 12%; left: 50%; transform: translateX(-50%); color: #fff;
  font-size: 0.77em; text-shadow: 0 2px 10px rgba(0,0,0,0.9);
  opacity: 0; transition: opacity 1s; pointer-events: none; z-index: 5;
  text-align: center; max-width: 85%; line-height: 2; }

/* Hint */
#hint { position: fixed; bottom: 5%; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,0.3); font-size: 0.75em; font-family: sans-serif;
  pointer-events: none; z-index: 5; opacity: 0; transition: opacity 1.5s; }

/* Fade */
#fade { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: #000;
  opacity: 0; transition: opacity 0.5s; pointer-events: none; z-index: 15; }

/* Maze Hint */
#maze-hint { position: fixed; bottom: 20%; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,0.6); font-size: 0.9em; pointer-events: none; z-index: 5;
  opacity: 0; transition: opacity 0.5s; text-shadow: 0 2px 8px rgba(0,0,0,0.8); }

/* Crosshair */
#crosshair { position: fixed; top: 50%; left: 50%; transform: translate(-50%,-50%);
  color: rgba(255,255,255,0.3); font-size: 1.2em; font-family: monospace;
  pointer-events: none; z-index: 5; opacity: 0; transition: opacity 0.3s; }

/* Action Menu — radial layout around crosshair */
#action-menu { position: fixed; top: 50%; left: 50%; width: 0; height: 0;
  z-index: 6; opacity: 0; transition: opacity 0.3s; pointer-events: none; }
#action-menu.active { opacity: 1; pointer-events: auto; }
#action-menu button { position: absolute; padding: 6px 14px; background: rgba(0,0,0,0.65);
  border: 1px solid rgba(255,255,255,0.25); border-radius: 16px; color: #ddd;
  font-size: 0.8em; cursor: pointer; font-family: sans-serif;
  backdrop-filter: blur(4px); transition: background 0.2s;
  white-space: nowrap; transform: translate(-50%, -50%); }
#action-menu button:hover { background: rgba(255,255,255,0.15); }
#action-menu button:active { background: rgba(255,255,255,0.25); }
#action-menu button .kbd { display: inline-block; margin-right: 5px; font-size: 0.8em;
  color: rgba(255,255,255,0.45); min-width: 0.8em; text-align: center; }
@media (pointer: coarse) {
  #action-menu button { padding: 10px 18px; font-size: 1em; }
  #text { bottom: 8%; }
}

/* Language Toggle */
#lang-btn { position: fixed; top: 14px; right: 52px; font-size: 0.75em; cursor: pointer;
  z-index: 6; opacity: 0; transition: opacity 0.5s; color: rgba(255,255,255,0.5);
  font-family: sans-serif; padding: 2px 6px; border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px; }
#lang-btn:active { color: #fff; }

/* Notebook Button */
#notebook-btn { position: fixed; top: 12px; right: 16px; font-size: 1.4em; cursor: pointer;
  z-index: 6; opacity: 0; transition: opacity 0.5s; }

/* Notebook Overlay */
#notebook-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.85); z-index: 50; display: none;
  flex-direction: column; backdrop-filter: blur(6px); }
#notebook-overlay.active { display: flex; }
#notebook-header { display: flex; align-items: center; padding: 16px 20px; gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.1); }
#notebook-title { color: #e0d4b8; font-size: 1.1em; flex-shrink: 0; }
#notebook-filters { display: flex; gap: 6px; flex: 1; overflow-x: auto; }
#notebook-filters button { padding: 3px 10px; background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15); border-radius: 12px;
  color: #aaa; font-size: 0.75em; cursor: pointer; white-space: nowrap; font-family: sans-serif; }
#notebook-filters button.active { background: rgba(255,255,255,0.2); color: #fff; }
#notebook-close { background: none; border: none; color: #888; font-size: 1.5em; cursor: pointer;
  padding: 0 4px; }
#notebook-content { flex: 1; overflow-y: auto; padding: 16px 20px; color: #ccc;
  font-size: 0.85em; line-height: 1.8; font-family: 'Courier New', monospace; }
.nb-entry { padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.nb-entry .nb-time { color: #888; font-size: 0.8em; }
.nb-entry .nb-char { color: #a0c8f0; }
.nb-entry .nb-action { color: #e0d4b8; }
.nb-entry .nb-result { color: #aaa; }
.nb-death { color: #cc4444 !important; border-bottom-color: rgba(204,68,68,0.2) !important; }

/* Death Screen */
#death-screen { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: #000; display: flex; flex-direction: column; align-items: center;
  justify-content: center; z-index: 60; opacity: 0; pointer-events: none;
  transition: opacity 1.5s; }
#death-screen.active { opacity: 1; pointer-events: auto; }
#death-msg { color: #cc4444; font-size: 1.3em; text-align: center; opacity: 0;
  transition: opacity 1.5s; max-width: 80%; line-height: 1.8; }
#death-new { color: rgba(255,255,255,0.5); font-size: 1em; margin-top: 30px;
  text-align: center; opacity: 0; transition: opacity 1.5s; }

/* Tombstone Chat */
#chat { position: fixed; bottom: 6%; left: 50%; transform: translateX(-50%);
  width: 88%; max-width: 420px; z-index: 20; opacity: 0; transition: opacity 0.6s;
  pointer-events: none; }
#chat.active { opacity: 1; pointer-events: auto; }
#chat-msgs { max-height: 180px; overflow-y: auto; margin-bottom: 8px; padding: 10px 12px;
  background: rgba(0,0,0,0.55); border-radius: 10px; backdrop-filter: blur(4px);
  color: #ccc; font-size: 0.9em; line-height: 1.7; }
#chat-msgs:empty { display: none; }
.chat-msg { margin: 4px 0; word-break: break-word; }
.chat-msg.user { color: #a0c8f0; text-align: right; }
.chat-msg.ai { color: #e0d4b8; }
#chat-input-wrap { display: flex; gap: 6px; }
#chat-in { flex: 1; padding: 8px 14px; background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.15); border-radius: 20px;
  color: #fff; font-size: 0.9em; outline: none; font-family: sans-serif; }
#chat-in::placeholder { color: rgba(255,255,255,0.3); }
#chat-send { padding: 8px 16px; background: rgba(255,255,255,0.12); border: none;
  border-radius: 20px; color: #fff; font-size: 1em; cursor: pointer; }
#chat-send:active { background: rgba(255,255,255,0.25); }

/* Leaderboard */
#leaderboard-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.85); z-index: 50; display: none;
  flex-direction: column; backdrop-filter: blur(6px); }
#leaderboard-overlay.active { display: flex; }
#leaderboard-header { display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid rgba(255,255,255,0.1);
  color: #e0d4b8; font-size: 1.1em; }
#leaderboard-close { background: none; border: none; color: #888; font-size: 1.5em; cursor: pointer; }
#leaderboard-content { flex: 1; overflow-y: auto; padding: 16px 20px; color: #ccc;
  font-size: 0.9em; line-height: 2; }
.lb-entry { padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.lb-entry .lb-check { color: #5a5; margin-right: 8px; }
.lb-entry .lb-pending { color: #555; margin-right: 8px; }
.lb-entry .lb-ready { color: #c0a060; margin-right: 8px; }
.lb-tier { margin-bottom: 14px; }
.lb-tier-header { color: #e0d4b8; font-size: 0.85em; letter-spacing: 0.15em;
  text-transform: uppercase; padding: 10px 0 4px 0; border-bottom: 1px solid rgba(224,212,184,0.12);
  margin-bottom: 4px; }
.lb-discovery { color: rgba(200,180,120,0.8); font-size: 0.85em; margin-top: 4px;
  opacity: 0; transition: opacity 2s; position: fixed; top: 50%; left: 50%;
  transform: translate(-50%,-50%); pointer-events: none; z-index: 55; }

/* CER Board */
.cer-intro { color: rgba(200,180,120,0.7); font-size: 0.85em; padding: 8px 0 16px 0; font-style: italic; font-family: sans-serif; }
.cer-card { position: relative; padding: 12px 14px; margin-bottom: 12px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px; font-family: sans-serif; font-size: 0.88em; line-height: 1.6; }
.cer-card.validated { border-color: rgba(120,200,140,0.5); background: rgba(120,200,140,0.05); }
.cer-tier { position: absolute; top: 10px; right: 12px; color: #888; font-size: 0.75em;
  padding: 2px 6px; border: 1px solid rgba(255,255,255,0.1); border-radius: 3px; }
.cer-validated { position: absolute; top: 10px; right: 50px; color: #7c7; font-size: 0.75em; }
.cer-field { margin: 6px 0; }
.cer-label { color: #e0d4b8; font-size: 0.75em; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 2px; }
.cer-value { color: #ccc; white-space: pre-wrap; }
.cer-actions { margin-top: 10px; display: flex; gap: 8px; }
.cer-actions button { padding: 4px 12px; background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15); border-radius: 4px; color: #ccc;
  font-size: 0.85em; cursor: pointer; font-family: sans-serif; }
.cer-actions button:hover { background: rgba(255,255,255,0.15); }
.cer-feedback { margin-top: 8px; padding: 6px 8px; color: #ccb;
  background: rgba(200,180,120,0.08); border-radius: 4px; font-size: 0.85em; }

#cer-editor { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.75); display: flex; align-items: center; justify-content: center;
  z-index: 70; backdrop-filter: blur(6px); }
.cer-editor-box { width: 85%; max-width: 520px; background: #141414;
  border: 1px solid rgba(255,255,255,0.15); border-radius: 10px;
  padding: 20px 22px; color: #ddd; font-family: sans-serif; max-height: 90vh; overflow-y: auto; }
.cer-editor-box h3 { color: #e0d4b8; font-weight: normal; margin-bottom: 14px; letter-spacing: 0.1em; }
.cer-editor-box label { display: block; color: #e0d4b8; font-size: 0.78em;
  letter-spacing: 0.1em; text-transform: uppercase; margin: 12px 0 4px 0; }
.cer-editor-box textarea { width: 100%; background: rgba(0,0,0,0.45);
  border: 1px solid rgba(255,255,255,0.15); border-radius: 4px; color: #fff;
  padding: 8px 10px; font-family: sans-serif; font-size: 0.95em; line-height: 1.5; resize: vertical; }
.cer-editor-actions { margin-top: 18px; display: flex; justify-content: flex-end; gap: 8px; }
.cer-editor-actions button { padding: 6px 16px; background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15); border-radius: 4px; color: #ddd; cursor: pointer;
  font-family: sans-serif; font-size: 0.9em; }
.cer-editor-actions button.primary { background: rgba(200,180,120,0.2); border-color: rgba(200,180,120,0.5); color: #e0d4b8; }

/* Onboarding Beat 6: pulse the newly-revealed CER submit button + notebook icon */
@keyframes cer-submit-pulse {
  0%, 100% { box-shadow: 0 0 0 rgba(200,180,120,0); }
  50% { box-shadow: 0 0 14px rgba(200,180,120,0.8); }
}
.cer-actions button.pulse-highlight {
  background: rgba(200,180,120,0.25);
  border-color: rgba(200,180,120,0.6);
  color: #e0d4b8;
  animation: cer-submit-pulse 1.5s ease-in-out infinite;
}
@keyframes notebook-icon-pulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(200,180,120,0)); }
  50% { transform: scale(1.15); filter: drop-shadow(0 0 10px rgba(200,180,120,0.9)); }
}
#notebook-btn.pulse {
  animation: notebook-icon-pulse 1.2s ease-in-out infinite;
}

/* Anti-stuck: Nudge text (Layer A) */
#nudge-text { position: fixed; bottom: 8%; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,0.35); font-size: 0.85em; pointer-events: none; z-index: 5;
  opacity: 0; transition: opacity 2s; text-align: center;
  text-shadow: 0 1px 6px rgba(0,0,0,0.6); letter-spacing: 0.1em; }

/* Anti-stuck: Maze Gate (Layer B) */
#maze-gate { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.8); display: flex; align-items: center; justify-content: center;
  z-index: 55; opacity: 0; pointer-events: none; transition: opacity 1s; }
#maze-gate.active { opacity: 1; pointer-events: auto; }
#gate-question { color: #e0d4b8; font-size: 1.2em; text-align: center; max-width: 75%;
  line-height: 2.2; letter-spacing: 0.08em;
  text-shadow: 0 0 20px rgba(200,180,120,0.3); }